EP3766706B1 - Spike pin, spike with spike pin, pneumatic tyres with spikes - Google Patents

Spike pin, spike with spike pin, pneumatic tyres with spikes Download PDF

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Publication number
EP3766706B1
EP3766706B1 EP20178637.3A EP20178637A EP3766706B1 EP 3766706 B1 EP3766706 B1 EP 3766706B1 EP 20178637 A EP20178637 A EP 20178637A EP 3766706 B1 EP3766706 B1 EP 3766706B1
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EP
European Patent Office
Prior art keywords
spike
spike pin
pin
cross
section
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EP20178637.3A
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German (de)
French (fr)
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EP3766706A1 (en
Inventor
Jaroslav Hajduch
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Continental Reifen Deutschland GmbH
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Continental Reifen Deutschland GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
    • B60C11/16—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile
    • B60C11/1675—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile with special shape of the plug- tip

Definitions

  • the invention relates to a spike pin, which can be inserted into a spike body of a spike for a tread of a pneumatic vehicle tire, the spike pin having a main axis and, when inserted into the spike body, an outer section with an upper side protruding from the latter, at least this section having a hexagonal Having cross-section and its top is limited by gripping edges.
  • Such a spike pin is for example in DE 103 54 331 A1 mentioned as belonging to the state of the art. Furthermore, in the CN 101 269 613 A discloses a spike pin having an elongated hexagonal cross-section.
  • a spike for a shoe for example a golf shoe
  • the spike consists of a spike pin and a spike body.
  • the section of the spike pin protruding from the spike body has a basic shape in the form of a truncated cone and is provided in the direction of its tip with six trapezoidal surfaces which adjoin one another over its circumference.
  • the spike body is provided with groove-shaped depressions on its outer surface.
  • the EP 1 531 065 A2 discloses a spike pin which is composed of an upper part and a lower part, the upper part forming the tip region of the spike pin lying outside the spike body.
  • a “rondiste” divides the spikepin into the upper part and the lower part.
  • the crown comprises a panel, ledge or apex spaced above the girdle plane. At least one facet is formed between the table, edge or tip and the girdle.
  • the spike pin designed in this way should have good durability, ie a long service life.
  • EPC EP 3 656 581 A1 discloses a spike with a spike body and a spike pin, which is composed of an outer section protruding from the spike body, a middle section and an end section.
  • the central section of the spikepin is delimited by a peripheral surface which is provided with depressions and/or elevations which are spaced apart from one another in the direction of extension of the main axis of the spikepin. With such a spike, the spike pin is particularly firmly anchored in the spike body.
  • the grip properties of pneumatic vehicle tires on snow and ice can be improved by means of spikes.
  • the design of the spike pins is particularly important when driving on ice-covered ground. It is known and customary to position spikes with specially and differently designed spike pins in one and the same tread at certain positions, for example in the center of the tread and in the lateral areas of the tread, in order to ensure the best possible effect of the spiked tread when forces are acting in different directions ensure.
  • the invention is based on the object of designing a spike pin of the type mentioned at the outset in such a way that it ensures good gripping properties when forces are acting in different directions, so that a special orientation of the spikes in the tread and/or the use of spikes with differently designed pins can be avoided .
  • This object is achieved according to the invention in that on the upper side of the spikepin there are exactly two flat main surfaces which are isosceles-trapezoidal in plan view and which are at an angle of 5° to 20°, the upper side being rotationally symmetrical in such a way that it is imaged onto itself only by rotating it through 180° around the main axis of the spikepin.
  • the spikepin according to the invention is distinguished—in comparison to the previously known spikepins—by a higher number of gripping edges. Furthermore, the gripping edges and the corner areas at which the gripping edges connect are in different "height positions" due to the inclined isosceles-trapezoidal main surfaces. Spikes used in the treads of pneumatic vehicle tires and provided with spike pins of this type are particularly advantageous since the spike pins can interlock particularly effectively when driving on icy ground, regardless of the direction of the forces acting.
  • At least the outer section of the spike pin has a regular hexagonal cross section.
  • Such a cross section has proven to be particularly favorable with regard to the non-directional, interlocking effect of the spike pin.
  • the angle at which the two isosceles-trapezoidal main surfaces are inclined relative to the cross-sectional plane of the outer section is up to 10°.
  • the gripping edges are at least partially chamfered. Two gripping edges are formed from one gripping edge by chamfering, as a result of which the gripping effect can be further improved. It is particularly favorable in this context if those gripping edges, which are the trapezoid legs of the isosceles-trapezoidal main surface, which are of the
  • Cross-sectional plane are further away, are double-chamfered and are therefore provided with two chamfers.
  • Three grip edges are formed by two chamfers. Depending on their position on the spikepin, these gripping edges are those gripping edges which can grip the deepest when driving on ice, as a result of which the gripping effect of the spikepin is further improved.
  • the two bevels enclose an angle of 20° to 45° with one another.
  • the spike pin has a hexagonal, in particular regularly hexagonal, cross section over its entire extension.
  • a spike pin can also be anchored well in the spike body.
  • the invention also relates to a spike with a spike pin according to the invention and a pneumatic vehicle tire with a tread in which a large number of such spikes are used.
  • the spike 1 shows a spike 1 in an upright position.
  • the spike 1 has a spike body 2 made up of a base flange 2a and a top flange 2b and a spike pin 3 held in a form-fitting and/or non-positive manner in the top flange 2b.
  • the at upright spike 1 running in the vertical direction main axis a 1 of the spike 1 is indicated by dashed lines.
  • the spike body 2 can be designed in a manner known per se, for example it has a rotationally symmetrical design and consists for example of metal, plastic, rubber or a combination of these materials.
  • the spike pin 3 consists in particular of hard metal or sintered metal.
  • the spike pin 3 is an elongate body, the main axis of which corresponds to the main axis a 1 of the spike 1 .
  • the spike pin 3 has the shape of a regular hexagon and is delimited by a flat regular hexagonal underside 4 , a specially designed upper side 5 and six side surfaces 6 .
  • the underside 4 is located within the upper flange 2b
  • the upper side 5 is located on an outer section 3a of the spikepin 3 protruding from the upper flange 2b ( 1 ).
  • the spike pin 3 is designed to be rotationally symmetrical in such a way that it is imaged onto itself only by rotating it through 180° about the main axis a 1 .
  • the upper side 5 of the spike pin 3 is limited on the outer circumference by six preferably chamfered gripping edges 5a, 5b, 5c, each of which is assigned to one side of the hexagon.
  • the two gripping edges 5a, the two gripping edges 5b and the two gripping edges 5c are opposite each other.
  • top 5 of the spikepin 3 is a major part of two levels, in top view ( 3 ) isosceles-trapezoidal main surfaces 5d formed or occupied, which are limited on the outer circumference of the spike pin 3 by adjoining gripping edges 5a, 5b, 5c, with the gripping edges 5a and 5c each forming the two trapezoidal legs of a trapezium.
  • a cross-sectional plane E 1 of the spikepin 3 is also indicated, which intersects the outer section 3a of the spikepin 3 at the level of the upper flange 2b and to which the main axis a 1 is aligned perpendicularly.
  • the main surfaces 5d are inclined relative to the cross-sectional plane E 1 at a constant angle ⁇ of 5° to 20°, in particular of up to 10°, whereby they are inclined in opposite directions to one another in accordance with the rotationally symmetrical shape of the spike pin 3 and each other exclusively on the main axis a 1 contact.
  • the gripping edges 5a forming the legs of the trapezium are at a greater distance from the cross-sectional plane E 1 than the gripping edges 5c forming the legs of the trapezium.
  • the gripping edges 5a run straight and are each doubly chamfered, so that a chamfer 5a' directly adjoining the corresponding side surface 6 and a chamfer 5a" adjoining the main surface 5d are formed.
  • the chamfer 5a' forms an angle of 20° with the chamfer 5a". ° to 45°, with the bevel 5a" being oriented orthogonally to the main axis a1 and therefore parallel to the cross-sectional plane E1 .
  • the gripping edges 5b are skewed to one another and are each chamfered in such a way that an elongated triangular bevel 5b' is formed, which runs out along the gripping edges 5b in the direction of the respective gripping edge 5c.
  • the gripping edges 5c are designed as sharp, simply kinked edges and are made up of an edge section 5c', which adjoins the gripping edge 5b and also delimits the main surface 5d, and an edge section 5c", which is an elongated section adjoining the main surface 5d via a fold triangular secondary surface 5e.
  • the edge section 5c' encloses an angle of 120° to 150° with the edge section 5c".
  • the triangular secondary surface 5e, determined at the edge section 5c" has a maximum width of 1.0 mm and extends with a tip to the main axis a 1 .
  • a substantially triangular bevel 5h is formed between the transition surfaces 5f and the main surfaces 5d.
  • the bevels 5a′, 5a′′, 5b′, 5h, viewed in cross section, have a width of preferably at most 1.0 mm at their widest point.
  • the chamfers 5a′, 5a′′, 5b′, 5h give the spike pin 3 additional gripping edges in the area of its upper side 5. Furthermore, the edge 5g running in the vertical direction also represents a further gripping edge.
  • the spike pin can also only be designed hexagonally on its section protruding from the spike body, viewed in cross section.

Description

Die Erfindung betrifft einen Spikepin, welcher in einen Spikekörper eines Spikes für einen Laufstreifen eines Fahrzeugluftreifens einsetzbar ist, wobei der Spikepin eine Hauptachse sowie im in den Spikekörper eingesetzten Zustand einen aus diesem herausragenden, äußeren Abschnitt mit einer Oberseite aufweist, wobei zumindest dieser Abschnitt einen sechseckigen Querschnitt aufweist und seine Oberseite durch Griffkanten begrenzt ist.The invention relates to a spike pin, which can be inserted into a spike body of a spike for a tread of a pneumatic vehicle tire, the spike pin having a main axis and, when inserted into the spike body, an outer section with an upper side protruding from the latter, at least this section having a hexagonal Having cross-section and its top is limited by gripping edges.

Ein derartiger Spikepin ist beispielsweise in der DE 103 54 331 A1 als zum Stand der Technik gehörend erwähnt. Ferner ist in der CN 101 269 613 A ein Spikepin mit einem langgestreckt sechseckigen Querschnitt offenbart.Such a spike pin is for example in DE 103 54 331 A1 mentioned as belonging to the state of the art. Furthermore, in the CN 101 269 613 A discloses a spike pin having an elongated hexagonal cross-section.

Aus der GB 1 473 967 A ist ein Spike für einen Schuh, beispielsweise einen Golfschuh, bekannt. Der Spike setzt sich aus einem Spikepin und einem Spikekörper zusammen. Der aus dem Spikekörper herausragende Abschnitt des Spikepins weist eine kegelstumpfförmige Grundform auf und ist in Richtung seiner Spitze mit sechs über seinen Umfang aneinander anschließenden trapezähnliche Flächen versehen. Der Spikekörper ist an seiner Außenfläche mit nutförmigen Vertiefungen versehen.From the GB 1 473 967 A a spike for a shoe, for example a golf shoe, is known. The spike consists of a spike pin and a spike body. The section of the spike pin protruding from the spike body has a basic shape in the form of a truncated cone and is provided in the direction of its tip with six trapezoidal surfaces which adjoin one another over its circumference. The spike body is provided with groove-shaped depressions on its outer surface.

Die EP 1 531 065 A2 offenbart einen Spikepin, welcher sich aus einem Oberteil und einem Unterteil zusammensetzt, wobei der Oberteil den außerhalb des Spikekörpers liegenden Spitzenbereich des Spikepins bildet. Eine "Rondiste" teilt den Spikepin in den Oberteil und den Unterteil. Der Oberteil umfasst eine Tafel, eine Kante oder eine Spitze, die in einem Abstand über der Rondistenebene angeordnet ist. Zwischen der Tafel, der Kante oder der Spitze und der Rondiste ist wenigstens eine Facette ausgebildet. Der derart ausgeführte Spikepin soll eine gute Haltbarkeit, also eine lange Lebensdauer, aufweisen.the EP 1 531 065 A2 discloses a spike pin which is composed of an upper part and a lower part, the upper part forming the tip region of the spike pin lying outside the spike body. A "rondiste" divides the spikepin into the upper part and the lower part. The crown comprises a panel, ledge or apex spaced above the girdle plane. At least one facet is formed between the table, edge or tip and the girdle. The spike pin designed in this way should have good durability, ie a long service life.

Die einen Stand der Technik nach Art 54(3) EPÜ bildende EP 3 656 581 A1 offenbart einen Spike mit einem Spikekörper und einem Spikepin, welcher sich aus einem aus dem Spikekörper herausragenden äußeren Abschnitt, einen mittleren Abschnitt und einen Endabschnitt zusammensetzt. Der mittlere Abschnitt des Spikepins ist durch eine Umfangsfläche begrenzt, welche mit in der Erstreckungsrichtung der Hauptachse des Spikepins zueinander beabstandet ausgebildeten Vertiefungen und/oder Erhebungen versehen ist. Bei einem solchen Spike ist der Spikepin besonders fest im Spikekörper verankert.Which constitutes prior art under Art 54(3) EPC EP 3 656 581 A1 discloses a spike with a spike body and a spike pin, which is composed of an outer section protruding from the spike body, a middle section and an end section. The central section of the spikepin is delimited by a peripheral surface which is provided with depressions and/or elevations which are spaced apart from one another in the direction of extension of the main axis of the spikepin. With such a spike, the spike pin is particularly firmly anchored in the spike body.

Mittels Spikes lassen sich bekannter Weise die Griffeigenschaften von Fahrzeugluftreifen auf Schnee und Eis verbessern. Insbesondere beim Fahren auf mit Eis bedecktem Untergrund kommt der Ausgestaltung der Spikepins eine besondere Bedeutung zu. Es ist bekannt und üblich, Spikes mit speziell und unterschiedlich gestalteten Spikepins in ein und demselben Laufstreifen an bestimmten Positionen, etwa in der Laufstreifenmitte und in den seitlichen Bereichen des Laufstreifens zu positionieren, um eine möglichst gute Wirkung des bespikten Laufstreifens bei in unterschiedlichen Richtungen wirkenden Kräften sicherzustellen.As is known, the grip properties of pneumatic vehicle tires on snow and ice can be improved by means of spikes. The design of the spike pins is particularly important when driving on ice-covered ground. It is known and customary to position spikes with specially and differently designed spike pins in one and the same tread at certain positions, for example in the center of the tread and in the lateral areas of the tread, in order to ensure the best possible effect of the spiked tread when forces are acting in different directions ensure.

Der Erfindung liegt die Aufgebe zugrunde, einen Spikepin der eingangs genannten Art derart zu gestalten, dass er bei in unterschiedlichen Richtungen wirkenden Kräften gute Griffeigenschaften sicherstellt, sodass eine spezielle Orientierung der Spikes im Laufstreifen und/oder der Einsatz von Spikes mit unterschiedlich gestalteten Pins unterbleiben kann.The invention is based on the object of designing a spike pin of the type mentioned at the outset in such a way that it ensures good gripping properties when forces are acting in different directions, so that a special orientation of the spikes in the tread and/or the use of spikes with differently designed pins can be avoided .

Gelöst wird die gestellte Aufgabe erfindungsgemäß dadurch, dass auf der Oberseite des Spikepins genau zwei ebene, in Draufsicht gleichschenklig-trapezförmige Hauptflächen ausgebildet sind, welche relativ zu einer Querschnittebene des äußeren Abschnittes, zu der die Hauptachse des Spikepins senkrecht ausgerichtet ist, unter einem Winkel von 5° bis 20° geneigt sind, wobei die Oberseite derart drehsymmetrisch gestaltet ist, dass sie ausschließlich durch eine Drehung um 180° um die Hauptachse des Spikepins auf sich selbst abgebildet wird.This object is achieved according to the invention in that on the upper side of the spikepin there are exactly two flat main surfaces which are isosceles-trapezoidal in plan view and which are at an angle of 5° to 20°, the upper side being rotationally symmetrical in such a way that it is imaged onto itself only by rotating it through 180° around the main axis of the spikepin.

Der erfindungsgemäße Spikepin zeichnet sich - im Vergleich zu den bisher bekannten Spikepins - durch eine höhere Anzahl an Griffkanten aus. Ferner befinden sich die Griffkanten sowie die Eckbereiche, an welchen die Griffkanten aneinander anschließen, bedingt durch die geneigten gleichschenklig-trapezförmigen Hauptflächen in unterschiedlichen "Höhenpositionen". In Laufstreifen von Fahrzeugluftreifen eingesetzte und mit derartigen Spikpins versehene Spikes sind besonders vorteilhaft, da sich die Spikepins beim Fahren auf eisigem Untergrund unabhängig von der Richtung der wirkenden Kräfte jeweils besonders wirkungsvoll verzahnen können.The spikepin according to the invention is distinguished—in comparison to the previously known spikepins—by a higher number of gripping edges. Furthermore, the gripping edges and the corner areas at which the gripping edges connect are in different "height positions" due to the inclined isosceles-trapezoidal main surfaces. Spikes used in the treads of pneumatic vehicle tires and provided with spike pins of this type are particularly advantageous since the spike pins can interlock particularly effectively when driving on icy ground, regardless of the direction of the forces acting.

Gemäß einer bevorzugten Ausführung weist zumindest der äußere Abschnitt des Spikepins einen regelmäßigen sechseckigen Querschnitt auf. Ein derartiger Querschnitt hat sich im Hinblick auf die richtungsunabhängige, verzahnende Wirkung des Spikepins als besonders günstig erwiesen.According to a preferred embodiment, at least the outer section of the spike pin has a regular hexagonal cross section. Such a cross section has proven to be particularly favorable with regard to the non-directional, interlocking effect of the spike pin.

Gemäß einer weiteren bevorzugten Ausführung beträgt der Winkel, unter welchem die zwei gleichschenklig-trapezförmigen Hauptflächen relativ zur Querschnittebene des äußeren Abschnittes geneigt sind, bis zu 10°.According to a further preferred embodiment, the angle at which the two isosceles-trapezoidal main surfaces are inclined relative to the cross-sectional plane of the outer section is up to 10°.

Ferner ist es günstig, wenn die Griffkanten zumindest zum Teil angefast sind. Durch ein Anfasen werden aus einer Griffkante zwei Griffkanten gebildet, wodurch sich die Griffwirkung weiter verbessern lässt. Es ist in diesem Zusammenhang besonders günstig, wenn jene Griffkanten, welche die Trapezschenkel der gleichschenklig-trapezförmigen Hauptfläche sind, die von derFurthermore, it is favorable if the gripping edges are at least partially chamfered. Two gripping edges are formed from one gripping edge by chamfering, as a result of which the gripping effect can be further improved. It is particularly favorable in this context if those gripping edges, which are the trapezoid legs of the isosceles-trapezoidal main surface, which are of the

Querschnittebene weiter entfernt sind, doppelt-angefast sind und daher mit zwei Fasen versehen sind. Durch zwei Fasen werden drei Griffkanten gebildet. Diese Griffkanten sind - entsprechend ihrer Position am Spikepin - dabei jene Griffkanten, welche beim Fahren auf Eis am tiefsten eingreifen können, wodurch die Griffwirkung des Spikepins weiter verbessert ist.Cross-sectional plane are further away, are double-chamfered and are therefore provided with two chamfers. Three grip edges are formed by two chamfers. Depending on their position on the spikepin, these gripping edges are those gripping edges which can grip the deepest when driving on ice, as a result of which the gripping effect of the spikepin is further improved.

Für die Griffwirkung, hat es sich ferner als vorteilhaft herausgestellt, wenn die zwei Fasen miteinander einen Winkel von 20° bis 45° einschließen.For the grip effect, it has also turned out to be advantageous if the two bevels enclose an angle of 20° to 45° with one another.

Gemäß einer weiteren bevorzugten Ausführungsvariante weist der Spikepin über seine gesamte Erstreckung einen sechseckigen, insbesondere regelmäßig sechseckigen, Querschnitt auf. Ein solcher Spikepin lässt sich zusätzlich gut im Spikekörper verankern.According to a further preferred embodiment variant, the spike pin has a hexagonal, in particular regularly hexagonal, cross section over its entire extension. Such a spike pin can also be anchored well in the spike body.

Die Erfindung betrifft ferner einen Spike mit einem erfindungsgemäßen Spikepin sowie einen Fahrzeugluftreifen mit einem Laufstreifen, in welchen eine Vielzahl derartiger Spikes eingesetzt ist.The invention also relates to a spike with a spike pin according to the invention and a pneumatic vehicle tire with a tread in which a large number of such spikes are used.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung werden nun anhand der Zeichnung, die schematisch ein Ausführungsbeispiel der Erfindung zeigt, näher erläutert. Dabei zeigen

  • Fig. 1 einen Spike mit einer Ausführungsvariante der Erfindung,
  • Fig. 2 eine Ansicht auf den Spikepin des Spikes aus Fig. 1,
  • Fig. 3 eine vergrößerte Draufsicht auf den Spikepin aus Fig. 2 und
  • Fig. 4 eine vergrößerte Ansicht im Bereich des Spikepins des Spikes aus Fig. 1.
Further features, advantages and details of the invention will now be explained in more detail with reference to the drawing, which schematically shows an exemplary embodiment of the invention. show it
  • 1 a spike with an embodiment variant of the invention,
  • 2 a view of the spikepin of the spike 1 ,
  • 3 shows an enlarged plan view of the spikepin 2 and
  • 4 shows an enlarged view in the area of the spike pin of the spike 1 .

Fig. 1 zeigt einen Spike 1 in aufrecht stehender Position. Der Spike 1 weist einen Spikekörper 2 aus einem Fußflansch 2a und einem Oberflansch 2b sowie einen im Oberflansch 2b form- und/oder kraftschlüssig gehaltenen Spikepin 3 auf. Die bei aufrechtstehendem Spike 1 in vertikaler Richtung verlaufende Hauptachse a1 des Spikes 1 ist gestrichelt angedeutet. Der Spikekörper 2 kann in an sich bekannter Weise ausgeführt sein, ist beispielsweise rotationssymmetrisch gestaltet und besteht beispielsweise aus Metall, Kunststoff, Gummi oder aus einer Kombination dieser Materialien. Der Spikepin 3 besteht insbesondere aus Hartmetall oder Sintermetall. 1 shows a spike 1 in an upright position. The spike 1 has a spike body 2 made up of a base flange 2a and a top flange 2b and a spike pin 3 held in a form-fitting and/or non-positive manner in the top flange 2b. The at upright spike 1 running in the vertical direction main axis a 1 of the spike 1 is indicated by dashed lines. The spike body 2 can be designed in a manner known per se, for example it has a rotationally symmetrical design and consists for example of metal, plastic, rubber or a combination of these materials. The spike pin 3 consists in particular of hard metal or sintered metal.

Wie Fig. 2 zeigt, ist der Spikepin 3 ein langgestreckter Körper, dessen Hauptachse der Hauptachse a1 des Spikes 1 entspricht. Der Spikepin 3 weist, im Querschnitt betrachtet, die Gestalt eines regelmäßigen Sechseckes auf und ist durch eine ebene regelmäßigsechseckige Unterseite 4, eine speziell gestaltete Oberseite 5 sowie sechs Seitenflächen 6 begrenzt. Im eingesetzten Zustand des Spikepins 3 befindet sich die Unterseite 4 innerhalb des Oberflansches 2b, die Oberseite 5 befindet sich an einem aus dem Oberflansch 2b herausragenden, äußeren Abschnitt 3a des Spikepins 3 (Fig. 1). Der Spikepin 3 ist derart drehsymmetrisch gestaltet, dass er ausschließlich durch eine Drehung um 180° um die Hauptachse a1 auf sich selbst abgebildet wird.how 2 shows, the spike pin 3 is an elongate body, the main axis of which corresponds to the main axis a 1 of the spike 1 . Viewed in cross section, the spike pin 3 has the shape of a regular hexagon and is delimited by a flat regular hexagonal underside 4 , a specially designed upper side 5 and six side surfaces 6 . When the spikepin 3 is inserted, the underside 4 is located within the upper flange 2b, the upper side 5 is located on an outer section 3a of the spikepin 3 protruding from the upper flange 2b ( 1 ). The spike pin 3 is designed to be rotationally symmetrical in such a way that it is imaged onto itself only by rotating it through 180° about the main axis a 1 .

Gemäß Fig. 3 ist die Oberseite 5 des Spikepins 3 am äußeren Umfang durch sechs vorzugsweise angefaste Griffkanten 5a, 5b, 5c, welche jeweils einer Seite des Sechseckes zugeordnet sind, begrenzt. Dabei liegen jeweils die beiden Griffkanten 5a, die beiden Griffkanten 5b und die beiden Griffkanten 5c einander gegenüber.According to 3 the upper side 5 of the spike pin 3 is limited on the outer circumference by six preferably chamfered gripping edges 5a, 5b, 5c, each of which is assigned to one side of the hexagon. The two gripping edges 5a, the two gripping edges 5b and the two gripping edges 5c are opposite each other.

Wie Fig. 4 zeigt, ist die Oberseite 5 des Spikepins 3 Großteiles von zwei ebenen, in Draufsicht (Fig. 3) gleichschenklig-trapezförmigen Hauptflächen 5d gebildet bzw. eingenommen, welche am äußeren Umfang des Spikepins 3 von jeweils aneinander anschließenden Griffkanten 5a, 5b, 5c begrenzt sind, wobei die Griffkanten 5a und 5c jeweils die beiden Trapezschenkel eines Trapezes bilden. In Fig. 4 ist ferner eine Querschnittebene E1 des Spikepins 3 angedeutet, welche den äußeren Abschnitt 3a des Spikepins 3 am Niveau des Oberflansch 2b schneidet und zu welcher die Hauptachse a1 senkrecht ausgerichtet ist. Die Hauptflächen 5d sind relativ zur Querschnittebene E1 unter einem konstanten Winkel α von 5° bis 20°, insbesondere von bis zu 10°, geneigt, wobei sie entsprechend der drehsymmetrischen Gestalt des Spikepins 3 gegensinnig zueinander geneigt sind und einander ausschließlich an der Hauptachse a1 kontaktieren.how 4 shows, the top 5 of the spikepin 3 is a major part of two levels, in top view ( 3 ) isosceles-trapezoidal main surfaces 5d formed or occupied, which are limited on the outer circumference of the spike pin 3 by adjoining gripping edges 5a, 5b, 5c, with the gripping edges 5a and 5c each forming the two trapezoidal legs of a trapezium. In 4 a cross-sectional plane E 1 of the spikepin 3 is also indicated, which intersects the outer section 3a of the spikepin 3 at the level of the upper flange 2b and to which the main axis a 1 is aligned perpendicularly. The main surfaces 5d are inclined relative to the cross-sectional plane E 1 at a constant angle α of 5° to 20°, in particular of up to 10°, whereby they are inclined in opposite directions to one another in accordance with the rotationally symmetrical shape of the spike pin 3 and each other exclusively on the main axis a 1 contact.

Die Trapezschenkel bildenden Griffkanten 5a weisen dabei zur Querschnittebene E1 einen größeren Abstand auf als die Trapezschenkel bildenden Griffkanten 5c.The gripping edges 5a forming the legs of the trapezium are at a greater distance from the cross-sectional plane E 1 than the gripping edges 5c forming the legs of the trapezium.

Die Griffkanten 5a verlaufen gerade und sind jeweils doppelt angefast, sodass eine unmittelbar an die entsprechende Seitenfläche 6 anschließende Fase 5a' und eine an die Hauptfläche 5d anschließende Fase 5a" gebildet sind. Die Fase 5a' schließt mit der Fase 5a" einen Winkel von 20° bis 45° ein, wobei die Fase 5a" orthogonal zur Hauptachse a1 und daher parallel zur Querschnittebene E1 orientiert ist.The gripping edges 5a run straight and are each doubly chamfered, so that a chamfer 5a' directly adjoining the corresponding side surface 6 and a chamfer 5a" adjoining the main surface 5d are formed. The chamfer 5a' forms an angle of 20° with the chamfer 5a". ° to 45°, with the bevel 5a" being oriented orthogonally to the main axis a1 and therefore parallel to the cross-sectional plane E1 .

Die Griffkanten 5b verlaufen windschief zueinander und sind jeweils derart angefast, dass eine langgestreckte dreieckige Fase 5b' gebildet ist, welche entlang der Griffkanten 5b in Richtung zur jeweiligen Griffkante 5c ausläuft.The gripping edges 5b are skewed to one another and are each chamfered in such a way that an elongated triangular bevel 5b' is formed, which runs out along the gripping edges 5b in the direction of the respective gripping edge 5c.

Die Griffkanten 5c sind als scharfe, einfach geknickte Kanten ausgeführt und setzen sich aus einem Kantenabschnitt 5c', welcher an die Griffkante 5b anschließt und die Hauptfläche 5d mitbegrenzt, und einem Kantenabschnitt 5c", welcher eine über einen Knick an die Hauptfläche 5d anschließende, langgestreckt dreieckige Nebenfläche 5e mitbegrenzt, zusammen. Der Kantenabschnitt 5c' schließt mit dem Kantenabschnitt 5c" einen Winkel von 120° bis 150° ein. Die dreieckige Nebenfläche 5e weist, ermittelt am Kantenabschnitt 5c", eine Breite von maximal 1,0 mm auf und reicht mit einer Spitze bis zur Hauptachse a1.The gripping edges 5c are designed as sharp, simply kinked edges and are made up of an edge section 5c', which adjoins the gripping edge 5b and also delimits the main surface 5d, and an edge section 5c", which is an elongated section adjoining the main surface 5d via a fold triangular secondary surface 5e. The edge section 5c' encloses an angle of 120° to 150° with the edge section 5c". The triangular secondary surface 5e, determined at the edge section 5c", has a maximum width of 1.0 mm and extends with a tip to the main axis a 1 .

Zwischen den Nebenflächen 5e und jener Hauptfläche 5d, an welche die jeweilige Nebenfläche 5e nicht anschließt, sind in vertikaler Richtung orientierte dreieckige Übergangsflächen 5f vorhanden, welche mit einer Spitze bis zur Hauptachse a1 reichen und eine am äußeren Rand des Spikespins 3 liegende in vertikaler Richtung verlaufende Kante 5g aufweisen.Between the secondary surfaces 5e and the main surface 5d, to which the respective secondary surface 5e does not adjoin, there are triangular transition surfaces 5f oriented in the vertical direction, which reach with a tip up to the main axis a1 and one lying on the outer edge of the spikespin 3 in the vertical direction have running edge 5g.

Beim gezeigten Ausführungsbeispiel ist zwischen den Übergangsflächen 5f und den Hauptflächen 5d jeweils eine im Wesentlichen dreieckige Fase 5h ausgebildet.In the exemplary embodiment shown, a substantially triangular bevel 5h is formed between the transition surfaces 5f and the main surfaces 5d.

Die Fasen 5a', 5a", 5b', 5h weisen, im Querschnitt betrachtet, an ihrer breitesten Stelle eine Breite von vorzugsweise höchstens 1,0 mm auf.The bevels 5a′, 5a″, 5b′, 5h, viewed in cross section, have a width of preferably at most 1.0 mm at their widest point.

Die Fasen 5a', 5a", 5b', 5h verleihen dem Spikepin 3 im Bereich seiner Oberseite 5 zusätzliche Griffkanten. Ferner stellt auch die in vertikaler Richtung verlaufende Kante 5g eine weitere Griffkante dar.The chamfers 5a′, 5a″, 5b′, 5h give the spike pin 3 additional gripping edges in the area of its upper side 5. Furthermore, the edge 5g running in the vertical direction also represents a further gripping edge.

Die Erfindung ist auf die beschriebene Ausführungsvariante nicht beschränkt: Insbesondere kann der Spikepin auch lediglich an seinem aus dem Spikekörper herausragenden Abschnitt, im Querschnitt betrachtet, sechseckig ausgeführt sein.The invention is not limited to the embodiment variant described: in particular, the spike pin can also only be designed hexagonally on its section protruding from the spike body, viewed in cross section.

Bezugsziffernlistereference number list

11
SpikeSpike
22
Spikekörperspike body
2a2a
Fußflanschfoot flange
2b2 B
Oberflanschtop flange
33
Spikepinspikepin
3a3a
Abschnittsection
44
Unterseitebottom
55
Oberseitetop
5a5a
Griffkantegrip edge
5a'5a'
Fasechamfer
5a"5a"
Fasechamfer
5b5b
Griffkantegrip edge
5b'5b'
Fasechamfer
5c5c
Griffkantegrip edge
5c'5c'
Kantenabschnittedge section
5c"5c"
Kantenabschnittedge section
5d5d
Hauptflächemain surface
5e5e
Nebenflächesecondary surface
5f5f
Übergangsflächetransition surface
5g5g
Kanteedge
5h5h
Fasechamfer
66
Seitenflächeside face
a1a1
Hauptachsemain axis
αa
Winkelangle
E1E1
Ebenelevel

Claims (9)

  1. Spike pin (3), which can be inserted into a spike body (2) of a spike (1) for a tread of a pneumatic vehicle tyre, wherein the spike pin (3) has a main axis (a1) and, in the state in which it is inserted in the spike body (2), an outer portion (3a), which projects out of the body and has an upper side (5), wherein at least this portion (3a) has a hexagonal cross section and its upper side (5) is delimited by grip edges (5a, 5b, 5c),
    characterized in that on the upper side (5) of the spike pin (3) there are formed exactly two planar main surfaces (5d), which in plan view are in the form of an isosceles trapezoid and are inclined at an angle (a) of 5° to 20° relative to a cross-sectional plane (E1) of the outer portion (3a), to which the main axis (a1) of the spike pin (3) is aligned perpendicularly, wherein the upper side (5) is of a rotationally symmetrical design such that it is projected onto itself just by means of a rotation through 180° about the main axis (a1) of the spike pin (3).
  2. Spike pin (3) according to Claim 1, characterized in that at least the outer portion (3a) of the spike pin (3) has a regular hexagonal cross section.
  3. Spike pin (3) according to Claim 1 or 2, characterized in that the angle (a) at which the two main surfaces (5d) in the form of an isosceles trapezoid are inclined relative to the cross-sectional plane (E1) of the outer portion (3a) is up to 10°.
  4. Spike pin (3) according to one of Claims 1 to 3, characterized in that the grip edges (5a, 5b, 5c) are at least partly bevelled.
  5. Spike pin (3) according to Claim 4, characterized in that the grip edges (5a, 5b, 5c) which form those sides of the trapezoid of the main surface (5d) in the form of an isosceles trapezoid that are further away from the cross-sectional plane (E1) are double-bevelled and are therefore provided with two bevels (5a', 5a").
  6. Spike pin (3) according to Claim 5, characterized in that the two bevels (5a', 5a") form an angle with one another of 20° to 45°.
  7. Spike pin (3) according to one of Claims 1 to 6, characterized in that it has over its entire extent a hexagonal, in particular regularly hexagonal, cross section.
  8. Spike (1) with a spike pin (3) according to one or more of Claims 1 to 7.
  9. Pneumatic vehicle tyre with a tread, in which a multiplicity of spikes according to Claim 8 are inserted.
EP20178637.3A 2019-07-16 2020-06-08 Spike pin, spike with spike pin, pneumatic tyres with spikes Active EP3766706B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019210491.6A DE102019210491A1 (en) 2019-07-16 2019-07-16 Spikepin, spike with a spikepin and pneumatic vehicle tires with spikes

Publications (2)

Publication Number Publication Date
EP3766706A1 EP3766706A1 (en) 2021-01-20
EP3766706B1 true EP3766706B1 (en) 2023-01-04

Family

ID=71069709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20178637.3A Active EP3766706B1 (en) 2019-07-16 2020-06-08 Spike pin, spike with spike pin, pneumatic tyres with spikes

Country Status (3)

Country Link
EP (1) EP3766706B1 (en)
DE (1) DE102019210491A1 (en)
FI (1) FI3766706T3 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1473967A (en) * 1975-08-20 1977-05-18 Eriksson A Non-replaceable spike for shoes
DE10351952A1 (en) * 2003-11-07 2005-06-09 Continental Aktiengesellschaft Spike pin, which can be introduced into a spike body to form a spike, and spikes for vehicle tires, shoe soles and the like
DE10354331A1 (en) 2003-11-21 2005-06-23 Continental Aktiengesellschaft Spike for vehicle tires
SE0700689L (en) 2007-03-19 2008-02-12 Nokian Renkaat Oyj Anti-slip studs and a car tire fitted with such
DE102018129477A1 (en) * 2018-11-22 2020-05-28 Sitek-Spikes Gmbh & Co. Kg Anti-slip pin

Also Published As

Publication number Publication date
EP3766706A1 (en) 2021-01-20
FI3766706T3 (en) 2023-04-04
DE102019210491A1 (en) 2021-01-21

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